Pan greasing machine



Jan. 18, 1949.

P. KELLNER PAN GREA SING MACHINE '3 Sheets-Sheet 1 Filed July 18, 1946fiw. AZZLA/E/P' BYjLl U K I HTTOF/VEYS' Jan. 18, 1949.

P. KELLNER PAN GREASING MACHINE I5 Sheets-Sheet 2 Filed July 18, 1946INVENTOR. 84w; fizz/v.9? BY /W N QMM Jan, 18, 1949. P. K'ELLNER2,459,324

PAN GREASING MACHINE Filed July 18, 1946 3 Sheets-Sheet 5 if v Iuiuilli'lfulijjml Patented Jan. 18, 1949 UNITED STATES PATENT OFFICE PANGREASING MAGHINE Paul Kellner, New York, N. Y., assign t Dukay MachineryQorporation, New York, N Y., a corporation of New York Application July18, 1946, Serial No. 684,399

7 Cl i 1 My invention consists of a new and improved machine for coatingarticles and comprises means for c at n the article i a s ap c nomicalmanner.

This application is a continuation in part of my application Serial No.606,515, filed July 23, 1945, and now abandoned.

While the machine of my invention may be used for coating various kindsof articles with different kinds of coating, it is primarily used forgreasing baking pans in baking establishments. It is well known thatinorder to bake cakes, biscuits, etc., in a pan it is necessary togrease the interior of the pan. The greasing must be done so as to coverthe entire area of the pan. If a spot is left ungrea'sed, the materialto be baked will burn. I f there is too much grease the baked materialwill be so gy. If a pan oi biscuits, for instance, i s putin a n' ovenand there is an excess amount of grease around the top of the pan, theexcess grease not only burns and gives off a disagreeable odor but also'forms a hard coating or filament which stains the pan and is verydiflicult, and in many cases impossible, to remove.

An object of the present invention is to thoroughly grease the interiorportion of a baking pan of any desired shape.

A further object of the invention is to protect that portion of the panor receptacle which does not contain the material to be baked, fromgrease.

A further object of the invention is to have a machine which is simplein construction and operates rapidly thereby saving a great amount oftime and labor.

The device consists essentially of an upright rectangular open frame,having sides and ends rest-. ing on uprights. At the top of the frameand substantially level with the top is a series of chains driven byshafts on which are mounted sprockets, at each end of the frame. Thesechains carry the pans or receptacles to be greased or coated from oneend of the machine to the other, Above the receptacle carrying means ismounted on shafts situated at each end of the machine, an endless beltof foraminous or porous material, preferably nylon. The greasing orcoating substance is contained in a receptacle in the bottom or lowerpart of the frame. In the case of greasing a number of pans for bakersuse, the grease is carried from the receptacle by means of a chainrunning on hreekeie n thr u h a the h h l s h rease. e he th hi: theP1EQ1AS be t h re it ass thr h he belt and s. emead, b ah? re ure W .I'-e erthe =e ';ie er he e e t e o he heat d." A ve h a re p reeer a e s arem vab mas whi h h s openin s to core pond with the size of the re eacle to be coated and tra ls with h eceptacles a ne the chain un i treaches t e en o t e machine er he ece ac es and a ks a e em v d by a peat The m k is h n cleaned o d ied by passing through a pair of squeegeerollers on the 0 the rame nd i hen ready for us on an ther et o pans.

Alth u h the no el f atures hi h are belie ed e be charact ristic of hinve t n wil he more ertieularl m nt d ou n the cl i s a pended hereto,the invention itself may be better understood by referring to thefollowing description in h h a s ee fle am le th r of has been set forthe urpose o ilhie ratie In the aeeemnehyih dr w n s:

F g, i a an iew of t e devi e;

Fig.- 2 i a a wi h he co er taken of Fig. 3 is a'section taken on line3-3 of Fig. 5;

F a i a sect o on line 1-4 of F 1;

Fig- 5 i a ee t n en in of F g- Q is a detailed section of the airspraynozzle;

g, 7 s a e tion on ne 1-1 of F 6.

In the drawings the numeral 8 indicates a rec-. tangular open framehaving ends 9 and sides [0 and car ed y a me tructure H. a ach end ofthe frame may be placed boards [2 on which are p c d th P ns or rec s ob coated- In an opening in the machine between the ends and sides andnearly at each end thereof are shafts l3 on which are mounted a seriesof sprockets l4. A series of endless chains l5 run over the sprocketsI4. The receptacles 21', the interiors of which v are to be coated, areplaced on the chains and carried from one end of the structure to theother where they are taken off the board or extension I 2 by anoperator. Mounted on the frame and above the carrying chains are rollersit over which runs an endless belt 11 made oi porous or foraminousmaterial, preferably nylon, of practically the width of the machine andcovering the chains IS. The chains 1-5 and belt I! are actuated by achain running over sprockets l8, I9, and Zi mounted on shafts l3, I6, 22and 23. On the top and on one of the sides [0 is mounted a driving motor24; having a, coupling 25 which extends into a casing 26 having areducing gear from which reducinggear extends a shaft 23 on which ismounted the sprocket 2! to. drive the chain 21 over the sprocket I;which drives the roller IS, the sprocket IS on the shaft I3 and sprocketto on the shaft. e. a tuate the en ne and fe amineu l T e e eptacles21-. he nt rio o which are.

placed beneath the endless chains 1 5. An endless chain 29 runs over asprocket 38 mounted on a shaft 3| driven from a motor 24 by gears 24aand 24?) on one side of the machine. This shaft in conjunction with thesprocketcarries a chain;- down through the grease vat' '25 where'itenters a tube 32 which extends from approximately the center of the vatto th side of the vat, where it is supported in bearings 38' andthen-bent at substantially right angles so as to be in line with theshaft 3|. This endless chain 29 running through the grease carriesthegrease upthrough the tube32where it comes outv of the" tube 32 and istaken offby a wiper33 on to the foraminous belt I] and is then spread bya'scraperdll onto the belt I! then is carried around the roller, it intothe .path of an airnozzle 47, at which point the grease is blown intothe pan 2'! carried on the chainsl5. 1

In order to prevent the grease as it is. blown through the belt fromcoming in ,co'ntact- 'with that portion of the receptacle whichis' to bekept clearfof grease, a plate or, masked having'holes 35 cut therein ofapproximately the same diameter as the interior of the receptaclefto begreased is placed over the receptacles. and lasljthe receptacles aregreased and come out on the extension I2 at the exit endofthefl'niachine, the mask is removed. The mask 34 is preferably made ofthin sheet metal but it, may be made of any desired material other thanmetal which can be readily cleaned. Movably mounted on the stop -of therectangular frame land at, approximately the center of the machine is apair of squeegee rollers 36 having a WOI'ITI- 3'la..driven by aworm'3flb from the motor 3'! which rotates the-rollertfi. At the otherend of roller 36 are a pair of gears- 36a. jAfter. the. mask haspassedthrough. the

greasing operation the mask isthen passed be;

tween the rollers 36 and .the grease or coating, materialwhich hasdropped thereon-during the greasing operation iswiped off-so thatthemask 34'willbe perfectly free of grease andclean for the next passageof receptacles through the greasing zone. 1 3 t i ,In order to confinethe. grease as much as pos: sible, the foraminousbelt ll has a narrowsalvage 38 on each side thereof which not only strengthens thematerialbut keep the grease from spreading over the sides thereof. There-are.alsosecured on each side of .the frame scrapers 39 which take. off aconsiderable amount of grease as the belt I! revolves. 1

At one end of the machine near the rollerulfi is mounted a scraper 40extending the width of:

the belt l1. The'scraper 40 is mountedon'up-.v

right rods 4| mounted on bearings 42': Springs Ma are interposed betweenthe scraper 46 and adjusting bolt and washer Alb :to' apply tension tothe scraper 40. On thetop of 'the'machine: may be placed aremovable'casingfm in orderto keep dust "and dirt while'in'operation.

' In orderto'tlioroiighlyand evenly coat the in-i side of thereceptacles the grease orcoating ma-' terial is blown by an air 'jet"uniformly o've'r'the from entering the machin interior of the receptacleto be coated in the following manner.

Mounted on and extending across the top of the machine is a bar 45, onwhich is pivotally mounted at 46 a nozzle 41. The nozzle 47 is mountedin a head 68 having a bifurcated end 49. Also mounted at thetop ofandextending across the machine is a'revolving shaft 22 having bearings L'On said shaft 22 is rigidly mounted a cam 52 which turns in thebifurcated ends 49 and swings the nozzle 41 back and forth across thebelt l''!." The air from any well known source of air pressure enters ametal tube 53 mounted onone side of the machine and to the metal tube115 is, attached the usual rubber tubeor hose 54 which coacts with thenozzle 41 and forces the air through the nozzle 41 on to the lower sideof the belt l7.

' As previously pointed out the nozzle ll in conjunction with the cam 52causes the nozzleto swingfrom side to' side" andacro-ssthe entire widthof the fora'minous'belt sothatasthe're 'pt'acles'pass under theforaminous-belt acoi'i'sta'iit stream of air through the nozzlefl'sprays 'the grease entirely over the interior of the receptac1e 1':

To the end of the nozzle is attached'afde vice for adjusting thequantity"offair' to-be sprayed. A sectional view-of this device'is shownin Fig. 6 and Fig; 7 is afdetailed view'of{the interior of'th e airadjustin'g 'device. iItYwilYbe seen that as a stream of air'55passe'sthrough the tube or hoseban'd' the nozzle 41, it blows a spray of greaseover thejinterior of the receptacle to be coated. At' the end of thenozzle (ll is-" a conical shaped plug 58 which may be threaded in orout. If itisthreaded in tOthGLHQZZIB fiT the amount'of airpassingthrough theap'ertur 51'is decreased. '1 it Certain specific termshav'e beenu d h n for convenience in referring'to the' vjarious de'tails of the invention. It isto' be i hderstood'; however, that theseterms are tobe'g'iven as br d an interpretation as the'state of the'artwill er' mit, although a specific embodimentfhi"the vention has been setforth for purposes o'f fi ll f tration, various changes and odificatiohs' flmaybe made therein as will be ap arent toia'pe son ed inthe hef nl st fig iian r .LFQ' 1b? limited in accordance with'the scope'lowing claims.

lclaim: I 1. A device for greasing recepta com means forimparting"longitudinal.m In htfto the belt, a source of greaselsupp'ly,ans'ffon distributing liquid grease o'n the foramin'ous .belt so as tobe carried thereby,- means iori'supporting' l the. receptacles to becoated on ont-igsitle of j the foraminous belt and meansior imparting.an airy. blast to the other side'nf thef orarninousbelt td; sprayliquid. zcarried by, thebelt... onto --the receptacles. H

2. A devicefor greasingrthe interiono recep-.- tacles comprising :a?'movably 'mountedl belt" of foraminous material, means for impartingl'ong i-z. tudinal'movement to thebeltfa source of gr eas'e supply,means 'for supporting'the recep acle-Ste low one side of theforaniiriousbelt,means for" conveying grease iron the sourcetoflthebjelt; a Wiper for "distributing' 'grease deposited onfthej l b sd s .m an ;.,a.? o lei d sp s i i it ebf th or m neustbe taii means: forforcing air-through said "nozzle onto the foraminous belt to sprayliquid carried thereby from the belt to the receptacles.

3. A device for greasing receptacles comprising a movably mounted beltof ioraminous material, a source of grease supply, means on one side ofthe belt for supporting the receptacles with the interior to be coateddisposed toward the foraminous belt, means for distributing liquidgrease on the belt so as to be carried thereby, a support disposed onthe other side of the foraminous belt, a nozzle pivotally mounted onsaid support, means for supplying air through the nozzle onto theforaminous belt, means for imparting longitudinal movement to theforaminous belt and means for reciprocating the nozzle across theioraminous belt to spray liquid from the belt to the interior of thereceptacles.

4. A device for greasing receptacles comprising in combination a movablymounted endless belt of foraminous material, means for impartinglongitudinal movement to said belt, a conveyor for receptacles to begreased disposed below the lower run of said belt of foraminous materialand capable of movement longitudinally thereof, a source of greasesupply, means for conveying liquid grease from the source to the endlessbelt of foraminous material, and means for distributing the greaseevenly on the surface thereof, a nozzle disposed above the lower run ofthe foraminous belt on the side opposite to the receptacles and meansfor forcing air through said nozzle onto the foraminous belt to sprayliquid carried thereby from the belt to the receptacles.

5. A device for greasing receptacles comprising in combination a movablymounted endless belt of foraminous material, means for impartinglongitudinal movement to said belt, a conveyor for receptacles to begreased disposed below the lower run of said belt of foraminous materialand capable of movement longitudinally thereof, a source of greasesupply, means for conveying liquid grease from the source to the endlessbelt of foraminous material, and means for distributing the greaseevenly on the surface thereof, a support extending between the upper andlower runs of the endless belt of foraminous material, a nozzlepivotally mounted on said support for reciprocation back and forthacross the belt of foraminous material, means for reciprocating saidnozzle and means for imparting air under pressure to the nozzle to spraygrease from the belt of foraminous material to the receptacles.

6. A coating device comprising a belt of foraminous material, means fordepositing a liquid coating material on the foraminous belt so as to becarried thereby,a nozzle device directed downwardly onto the foraminousbelt, means for supporting articles to be coated on the opposite side ofthe foraminus belt from the nozzle and means for supplying air underpressure to the nozzle to cause a spray of liquid coating material to beprojected from the belt to the articles to be coated.

7. A device for greasing receptacles comprising a pair of spacedrollers, an endless belt of foraminous material mounted on said rollers,means for imparting longitudinal movement to said belt, a source ofliquid grease supply, an endless chain submerged at one portion in theliquid grease and extending above the foraminous belt at anotherportion, means for imparting movement to the endless chain, a wiper fordisengaging liquid from the endless chain so as to be deposited onto theforaminous belt, means for conveying a series of receptacles below thelower run of the foraminous belt and in a direction longitudinallythereof, a nozzle directed toward the lower run of the foraminous belton the side opposite to the receptacles and means for supplying airunder pressure to said nozzle to spray grease from the belt to thereceptacles.

PAUL KELLNER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Germany May 16, 1933

